The MX112, 1 x 12" cab is an extension cab for a 1 x 12" combo, which adds flexibility to your setup. If you use a rack setup, then two MX112s could be used in stereo, with a Marshall EL34 50/50 for example. This mono cab, covered in Marshall Tolex, featuring the iconic Marshall baffle logo is loaded with a Celestion Seventy 80 speaker.